Abstract
In this note, a criteria for convex functions is given under upper semi-continuous condition.
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References
Yang, X. M. “Convexlty of semi-continuous functions”. Opsearch, 31 (1994) 309–317.
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Yang, X.M. A Note on Convexity of Upper Semi-Continuous Functions. OPSEARCH 38, 235–237 (2001). https://doi.org/10.1007/BF03399228
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DOI: https://doi.org/10.1007/BF03399228